content: import java.util.*;   //INCLUDES ALL THE FILES
  class Main{
  	public static void main(String[] args){
  		Scanner sc = new Scanner(System.in);
  		StringBuilder str = new StringBuilder();
  		str.append("Hello");
  		str.append(" World");
  		System.out.println("The String after appending is : "+str);
  		str.replace(5,6," to the ");
  		System.out.println("The String after Replacing is : "+str);
  		str.delete(1,3);
  		System.out.println("The String after Deleting is : "+str);
  		str.reverse();
  		System.out.println("The String after Reversing is : "+str);
  		System.out.println("The String capacity is : "+(str.capacity()));
  		System.out.println("==========String Builder up=======");
  		System.out.println(" ");
  		System.out.println("==========Strings down============");
  		String str1 = "      Normal String ";
  		System.out.println("The String Length is : "+(str1.length()));
  		System.out.println("The indexOf operation  : "+(str1.indexOf('S')));
  		System.out.println("The charAt operation  : "+(str1.charAt(4)));
  		String str2 = "String";
  		System.out.println("The compare operation  : "+(str2.compareTo("sTRING")));
  		System.out.println("The compare without case operation  : "+(str2.compareToIgnoreCase("string")));
  		System.out.println("The contains operation  : "+(str1.contains("mal ")));
  		System.out.println("The  endwith operation  : "+(str1.endsWith("g ")));
  		System.out.println("The replace operation  : "+(str1.replace("String ","Programming is Java")));
  		System.out.println("The replaceall operation  : "+(str1.replaceAll(" ","@!")));
  		System.out.println("The replace first operation  : "+(str1.replaceFirst("[N]","\\$")));
  		System.out.println("The lower case operation  : "+(str1.toLowerCase()));
  		System.out.println("The upper case operation  : "+(str1.toUpperCase()));
  		System.out.println("The trim operation  : "+(str1.trim()));
  		System.out.println("The number to string  : "+(String.valueOf(123456789)));
  		char[] array = str1.toCharArray();
  		System.out.println("The character array is  : "+(Arrays.toString(array)));
  		System.out.print("The Number of Vowel letters are : ");
  		int vow = 0;
  		int con = 0;
  		for(char u :str1.toCharArray())
  		{
  			if("AEIOUaeiou".indexOf(u) != -1)
  			{
  				vow++;
  			}
  			else if("AEIOUaeiou".indexOf(u) == -1 && u!=' ')
  			{
  				con++;
  			}
  		}
  		System.out.println(vow);
  		System.out.print("The Number of Consonents is : ");
  		System.out.println(con);
  		System.out.println("The substring operation is  : "+(str1.substring(7,15)));
  		System.out.println("The substring operation is  : "+(str1.substring(7)));
  	}
  }
  